【发布时间】：2018-07-03 06:34:36
【问题描述】：
这是发布数据和文件时出现的错误。 我已按照“academind”教程构建 Restful API 服务，我也一直在寻找此类错误的答案，但对我没有任何帮助。
我正在使用“multer”上传文件
文件夹中的“上传”文件夹可用，但它显示
ENOENT：没有这样的文件或目录，打开 'D:\project\uploads\2018-01-24T07:41:21.832Zcheck.jpg'"
app.js
const express = require("express");
const app = express();
const morgan = require("morgan");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");
const productRoutes = require("./api/routes/products");
mongoose.connect('',
(err)=>{
if(err){console.log(err)}
else{console.log('DB Connected')}
})
mongoose.Promise = global.Promise;
app.use(morgan("dev"));
app.use('/uploads', express.static('uploads'));
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use((req, res, next) => {
res.header("Access-Control-Allow-Origin", "*");
res.header(
"Access-Control-Allow-Headers",
"Origin, X-Requested-With, Content-Type, Accept, Authorization"
);
if (req.method === "OPTIONS") {
res.header("Access-Control-Allow-Methods", "PUT, POST, PATCH, DELETE, GET");
return res.status(200).json({});
}
next();
});
// Routes which should handle requests
app.use("/products", productRoutes);
app.use((req, res, next) => {
const error = new Error("Not found");
error.status = 404;
next(error);
});
app.use((error, req, res, next) => {
res.status(error.status || 500);
res.json({
error: {
message: error.message
}
});
});
module.exports = app;
product.js
const express = require("express");
const router = express.Router();
const mongoose = require("mongoose");
const multer = require('multer');
const storage = multer.diskStorage({
destination: function(req, file, cb) {
cb(null, './uploads/');
},
filename: function(req, file, cb) {
cb(null, new Date().toISOString() + file.originalname);
}
});
const fileFilter = (req, file, cb) => {
// reject a file
if (file.mimetype === 'image/jpeg' || file.mimetype === 'image/png') {
cb(null, true);
} else {
cb(null, false);
}
};
const upload = multer({
storage: storage,
limits: {
fileSize: 1024 * 1024 * 5
},
fileFilter: fileFilter
});
router.post("/", checkAuth, upload.single('productImage'), (req, res, next) => {
const product = new Product({
_id: new mongoose.Types.ObjectId(),
name: req.body.name,
price: req.body.price,
productImage: req.file.path
});
product
.save()
.then(result => {
console.log(result);
res.status(201).json({
message: "Created product successfully",
createdProduct: {
name: result.name,
price: result.price,
_id: result._id,
request: {
type: 'GET',
url: "http://localhost:3000/products/" + result._id
}
}
});
})
.catch(err => {
console.log(err);
res.status(500).json({
error: err
});
});
});
module.exports = router;
【问题讨论】：
-
根据this page，文件名中不允许使用冒号（
:）。尝试删除它（product.js中的第 11 行）。